Machine for forming coils of wire.



PATENTED OCT. 10, 1905.

C. A. MONNIER.

MACHINE FOR FORMING COILS OP WIRE.

APPLICATION FILED MAY15.1905.

lNvENToR 6.5.

J/WJ/Zm ATTORN EY UNITED STATES PATENT OFFICE.

MACHINE FOR FORMING COILS OF WIRE.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed May 15, 1905. Serial No. 260,584.

To all whom it may concern:

Be it known that I, CHARLES A. MoNNIER, a citizen of the United States,residing at Attleboro, in the State of Massachusetts, have invented anew and useful Improvement in Machines for Forming Coils of Wire, ofwhich the following is a specification.

My invention consists in the improved construction of a machine forforming coils of wire whereby rings of desirable shapes may be producedfor the construction of bracelets and similar articles.

In the accompanying drawings, Figure 1 represents a side elevation ofthe machine. Fig. 2 represents a front view of the same. Fig. 3represents a section takenon the line 3 3 of Fig. 1. Fig. 4: representsa coil of hollow wire rolled up in suitable form for the construction ofbracelets. Fig. 5 represents an end view of the said coil. Fig. 6represents an edge view of a single coil when separated from the othersby means of a saw cut made longitudinally of the wound coils.

In the drawings, Arepresents the housingframe of the machine providedwith the downwardly-extending lug B, by means of which the frame is tobe held in the jaws of a vise. The grooved wire-turning rolls C and Dare secured to the shafts E and F by means of the nuts G and H,respectively, the said shafts being held for rotation in thebearing-boxes I and J, the upper bearingboxes I being made adjustable inheight by means of the setscrews K K, which are threaded in the cap 0 ofthe housing-frame. To the lower shaft F is secured the crank L, by meansof which the said shaft is to be rotated, simultaneous rotation beingimparted to the upper shaft E by means of the connecting-gears M and Atthe side of the frame A is placed the slide P, provided with a fixedstud Q, upon which is placed the loosely-revolving grooved roll R, whichis held upon the said stud by means of the nut S, and upon the side ofthe slide P is placed the roller-stud T, which engages with the cam U,secured to the shaftE at the rear of the grooved roll C, whereby uponthe rotation of the rolls C and D reciprocating movement will beimparted to the said slide P, and hence to the roll R. The roller-studTis actuated toward the periphery of the cam Uby means of the spring-V,which is secured to the frame A in the opening WV, The grooves 64 a a ofthe several rolls C, D.

and R are formed near the extreme edge of the peripheries of the saidrolls, as shown in Fig. 3, and lie in the same plane.

In forming up the series of coils X. shown in Fig. 4:, the wire fromwhich the said coils are to be formed is to be first passed between therolls C and D in the grooves a a, and then either over the top of theroll R or under the same in its groove d. Then upon the continuedrotation of the rolls C and D the wire will first be turned over in theplane of the grooves a a a of the rolls until the end of the turned wirestrikes against the incoming wire, and then by forcing the end of theturned wire to one side out of the plane of the said grooves by the handof the operator the coils may be formed as represented in said Fig. 4,the action of the cam U upon the slide P serving to impart to the saidcoils the desired oval form, as shown in Fig. 5, and then upon sawingthe several coils apart, as shown by the line :r in Figs. l and 5, theends of separated single coils will spring automatically to the sameplane, as shown in Fig. 6, and will not require to be bent to the sameplane, as heretofore required in making such coils of wire for rings orbracelets. The grooves a a are formed at the outer edge of the rolls Cand D, so as to allow the turned wire to be forcibly deflected from theplane of the said grooves, as above described. The wire employed may beof any desired form of cross-section and the cam U be made of the properform for turning the said wire into coils of the oval shape required,the ends of the cut coils springing resiliently in opposite directionsto the same plane. \Vhen the cam U is changed to a circular form, thewire will be correspondingly coiled in a true circle, and various shapesmay be imparted to the coils by varying the shape of the cam.

I claim as my invention In a machine of the character described, thecombination of the geared grooved rolls, the cam upon the shaft of oneof the said rolls, the spring-actuated slide, the grooved roller carriedby the slide, and the stud upon the slide for engagement with the cam,substantlally as described.

CHARLES A. MONNIER.

\Vitnesses:

SOCRATES SOHOLFIELD, JOHN MITCHELL.

